function er404(app){
	var body = '<html>'+
    '<head>'+
    '<meta http-equiv="Content-Type" '+
    'content="text/html; charset=UTF-8" />'+
    '</head>'+
    '<body>'+
    '<h1>404</h1>'+
    '</body>'+
    '</html>';

  app.res.writeHead(200, {"Content-Type": "text/html"});
  app.res.write(body);
  app.res.end();
}

exports.er404 = er404;